Jayco RV Owners Forum

Thread Tools Display Modes
Old 07-29-2015, 09:15 PM   #21
Senior Member
Join Date: Mar 2010
Location: north central Iowa
Posts: 264
Jayco told me my rims are rated at 90 psi. We put metal valve stems on and are running the tires at 100 psi. Others have told me they are doing this with good results. At 100 psi the g614 is rated 3550 lbs at 75 mph which is about the same weight as the TowMax tires I took off (3520- 80 psi at 65 mph). I drive about 62 mph max. The difference is the G614 is a heavier tire with a much tougher sidewall.

2014 Eagle Premier 361REQS
2013 Ford F350 Crew w/ 6.7 diesel
sailor is offline   Reply With Quote
Old 07-30-2015, 04:12 AM   #22
Senior Member
edatlanta's Avatar
Join Date: Dec 2009
Location: Maplesville, AL - Home Base
Posts: 2,263
Originally Posted by Camper_bob View Post
I'd like to know this too. I'm wondering if the wheel may be a limiting upgrade factor for some of us?
My wheels show on the inside (you have to crawl under and look from the inside) that they are rated for 110 psi. I know others have said their wheels are not. I guess I am lucky, but I would still upgrade to G614's even if I had to buy new wheels. I decided I would not tow another mile with the original "E" rated tires.


2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch
2010 Jayco Designer 35RLTS, Cummins/Onan RV QG 5500 EVAP, Progressive Industries EMS-PT50C, TST Systems 507 TPMS, RV Flex Armor Roof
edatlanta is offline   Reply With Quote
Old 07-30-2015, 05:58 AM   #23
Site Team
norty1's Avatar
Join Date: Jan 2011
Location: Charleston, SC
Posts: 9,415
My rims are all rated at 110 psi. I had metal stems already for use with the TPMS.
When my last E Marathon blew, I was literally looking at the tire monitor when it came apart with no warning.
Tread came apart.
2011 351RLTS Eagle, Mor/Ryde suspension & pin box
06 F350 Lariat PSD, SRW, LB, CC, EGR delete kit, 16K DrawTite hitch, Timbrens, TST TPMS

Can't find what you're looking on JOF? Try:Jayco Owners Forum Custom Google Search
"It's easier to fool people than to convince them that they have been fooled." - Mark Twain
norty1 is offline   Reply With Quote
Old 07-30-2015, 08:35 PM   #24
Join Date: Nov 2014
Location: Palmdale
Posts: 73
Sailor, I would not be comfortable with over pressurizing the wheels. I would not want to take on the liability if something bad happened. Hopefully you will have no problems.
Jack 56 is offline   Reply With Quote
Old 07-30-2015, 09:14 PM   #25
Senior Member
Join Date: Sep 2013
Location: Erie, PA
Posts: 203
As someone pointed out above, the practice of the majority of the RV manufacturers is to use components (axles, suspension, wheels, tires, etc.) to the maximum or slightly over. The number of trailer tire failure threads is uncountable; suspension system components failure threads are almost as common.

I just came to accept that overhauling was part of the cost. New axles, shackles, bushings, wet bolts, shocks, wheels, and tires. Now everything is at 70% or less of capability. I also use LT rather than ST tires.

I still torque lug nuts, check tire pressure with a gauge, etc., as well as use a TPMS.

I call this the "cost of clean underwear." Closely related to having enough truck to tow with.
2012 Ram 2500 CC CTD
2015 Jayco Jayflight 28BHBE
RUSSELL5000 is offline   Reply With Quote
Old 08-01-2015, 11:10 AM   #26
Senior Member
Join Date: Mar 2014
Location: New Haven
Posts: 260
Yesterday I ordered my three pairs of Goodyear G114s (H rated radials) mounted on 17.5" Aluminum rims. Caps nuts mounted balanced hi press stems: shipped 3600$. Have had Blowmax on my '14 Seismic since last April. Not much mileage and no visible crowning or bubbling but not willing to play the wait and see game. Money well spent. I think a G614 16" Goodyear G rated tire would have been ok on the stock rims, but I wanted the extra headroom and stability of the H. The 114 tire has Incredible reliability reports, better than that of the G614. Either way, much better than an E Blowmax on a 7k axle. Highly recommended. Waiting for them to arrive so I can get them mounted. I will have a set of 110psi rated 16" aluminum rims (6) for sale here soon with or without the tire. Let me know I'm advance of interested. 8lug.

Safe travels!
P25ct is offline   Reply With Quote
Old 08-03-2015, 05:02 AM   #27
Senior Member
Quahog's Avatar
Join Date: Oct 2011
Location: Houston
Posts: 2,529
I just installed a set of these on our rig and put almost 2,000 miles on them already. Gotta say I'm loving them and you just can't put a price on the peace of mind.
Mike, Sue, Sissy and Little Man

2015 Ford F350 Lariat FX4 6.7 CC DRW
2015 Eagle Premier 351RSTS

Quahog is offline   Reply With Quote
Old 08-03-2015, 06:07 AM   #28
Join Date: Nov 2014
Location: Palmdale
Posts: 73
My 17.5 inch wheels and tires will be here this Friday. Jayyco is sendig new 7000 pound axles to a local RV repair shop.
Jack 56 is offline   Reply With Quote
Old 08-03-2015, 06:20 AM   #29
Senior Member
Join Date: Mar 2014
Location: New Haven
Posts: 260
That's great to hear Jack. Glad they did the math for themselves and stepped up. Nice work.
P25ct is offline   Reply With Quote
Old 08-03-2015, 06:31 PM   #30
Join Date: Feb 2014
Location: Anywhere we want
Posts: 63
We have 8 lug with a max capacity of 3580lbs. The max psi is 80. When you upgrade the rims and tires, you need to be sure your axles can handle the additional weight also. We have 6000 lb axles, so our options for increasing our wheels and tires are limited. We recently replaces the TowMax tires with Goodyear Marathons. (all we could get while traveling.)

Glen and Karen
2013 Eagle Premier 321 RLTS
2008 Ford F350 Lariat 4X4 6.4 Powerstroke
"Hannah" and "Jasper" our tagalong poms
KLGard is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Virginia State Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -6. The time now is 10:51 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.